/Engine/Plugins/Runtime/AudioWidgets/Source/AudioWidgets/Public/AudioSlider.h
Get normalized linear (0 - 1) value from output based on internal lin to output mapping.
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category="Behavior", Meta=(DeprecatedFunction, DeprecationMessage="5.1 - GetLinValue is deprecated, please use GetSliderValue instead.")) float GetLinValue ( const float OutputValue )